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Oxygen saturation in cutaneous microcirculation has a great potential for the characterization of skin physiology. However, just using the hyperspectral imaging technique, the maps of oxygen saturation in cutaneous microcirculation could not be obtained with high resolution. Thus, in this work, two techniques, hyperspectral imaging and skin optical clearing technique, were used for the oxygen saturation...
It's three of ultra-high guarantied bandwidth, ultra-low energy, and ultra-low latency, enabling the first real-time remote music session using uncompressed 8K-video transmission between Tokyo and Tsukuba over a field-deployed large-scale dynamic optical path network.
We show how scalable photonic circuit design can be achieved with an EDA-style schematic driven design flow combined with a foundry specific PDK, including validated compact models for accurate photonic circuit simulation and verification.
This paper reports recent advances in Fourier domain mode locking (FDML) swept source in our group. In this paper, several methods to improve the performance of the FDML swept source are described: using wavelength division multiplexing technique to improve the scanning range, using Fox-Smith cavity structure to improve the scanning speed, using all polarization-maintaining structure to improve the...
We experimentally evaluate flex-grid network upgrade scenarios, employing variable data rates and modulation formats and show that optical channel power should be assigned with knowledge of existing neighboring traffic to achieve best performance in WDM transmission.
We propose optical 8D time-polarization modulation using square-QAM-constellation and a simple decoding algorithm. Experiments show that the proposed modulation format can achieve significant gain and the decoding algorithm has the same performance as conventional maximum-likelihood-detection.
We experimentally investigate filtering tolerance of 32-Gbaud DC-PDM-16QAM signals in 75-GHz-grid ROADM networks considering the trade-off between subcarrier-filtering and inter-subcarrier crosstalk.
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